Making conceptual models clearer and more understandable

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In the early stages of developing an information system, systems analysts often create conceptual models. Such models are primarily diagrammatic, and include constructs and rules that analysts can use to describe a domain. Examples include entity-relationship models and business process models. Conceptual models are vital because they help analysts to understand users' requirements and to communicate them to designers. Research shows that understanding user requirements is the key to successful information system development.